Gaff or boom iron.



No. 747,471. -PATENTED DEG. 22, 1903.

T. 0. OTTO & J. A. RUSSELL.

' GAFF 0R BOOM IRON.

APPLICATION FILED AUG. 14. 1903.

no MODEL.

, INVENTO I WITNESSES.-

a C' 7 fiaah m BY 2 i a the straight arms of the upper clamp and areits. 747,471.

UNIT D STATES Patented December 22, 1903.

PATENT OFFICE.

ANDREW RUSSELL, OF K'EYWEST,

FLORIDA.

GAFF OR BOOM IRON.

SPECIFICATION forming part of Letters Patent No. 747 ,471, datedDecember 22, 1903.

. Application filed August 14, 1903.

To all whom it may concern:

Beit known that we,THOMAS OSGOOD OTTO and JOHN ANDREW RUSSELL, citizensof the United States, residing at Keywest, in the county of Monroe andState of Florida, have invented certain new and useful Improvements inGaff or Boom Irons, of which the following is a specification.

- Our present invention relates to improvements in gaff or boom irons;and the main object of the invention is the provision of an iron whichcan be readily secured in place upon a gaff or boom and readily adjustedto any sized gaff or boom and which is provided with means whereby thethroat-halyard and sheet-block are readily secured.

To attain these objects, the invention consists of a device of thischaracter embodying novel features of construction and combination ofparts substantially as disclosed herein.

In the accompanying drawings, Figure 1 is a front elevation of thedevice secured to the boom, which isshown in cross-section. Fig. 2 is atop perspective view of the upper clamp. Fig. 3 is a detail view of thelower clamp. Fig. 4 is a detail view of one of the connecting-bolts.

Referring to the drawings, A designates the upper. clamp, which isprovided with the centrally-arranged curved portion B and the twostraight oppositely-extending arms 0. Secured upon the upper face of thearms are the eyes D, to which are removably secured the hooks E,preferably sister hooks, which are connected to the chains F, the saidchains being connected together at their ends by means of the ring G.The central curved portion of this clamp is adapted to fit around thegafi, but when the same is secured upon the boom theoppositely-extending sraight arms lie crosswise upon the jaws of theboom. Secured centrally of the curved portion of this clamp andextending upwardly therefrom is an eyebolt H, in which is mounted a ringJ, to which the throat-halyards are adapted to be hooked.

The lower clamp K consists of a single piec of metal provided with theflat terminalsL, which are adapted to lie in parallel line with providedwith alining openings M, which are Serial No. 169A69. (No model.)

adapted to aline with the openings M of the upper clamp, so that thebolt N can be passed through the upper and lower \plates and be securedin place by means of the nut N, washers 0 being employed to assist thebolt in securing the clamps together. These bolts are provided with theeyed heads 0'.

The lower clamp is provided with the two oppositely-arranged curvedportions P and the centrally-arranged abrupt curved portion Q, the twocurved portions P being adapted to rest upon the under face of a boom orgafi, so that the central curved portion will form an eye to wh-ich'atack of asail can be secured.

From the foregoing description, taken in connection with the drawings,it is evident that we provide an iron of this character which can beused upon a gaff, a main-boom, or upon a gaff-topsail and one which isreadily applied to it as circumstances require.

What'we claim as new, and desire to secure by Letters Patent, is-

1. A device of this character, consisting of an upper and a lowerclamping member, the

'upper member being provided with a centrally-curved portion and twooppositely-extending straight arms, an eye secured to the upper face ofeach one of the straight arms and the curved portion, a pair of chainssecured to the eyes of the straight portions, and a link secured to theeyes of the curved portion.

2. A device of this character, consisting of an upper and a lowerclamping member, the lower clamp being made of a single piece of metaland having two oppositely-arranged straight portions, twooppositely-arranged slightly-curved portions, and a centrally-arrangedcurved portion of greater depth than the curve of theoppositely-arranged portions.

3. A device of this character, consisting of an upper and a lowerclamping member, the upper member being provided with a centrally-curvedportion, and two oppositely-extending straight arms, an eye secured tothe upper face of each one of the straight arms and the curved portion,a pair of chains secured .to the eyes of the straight portions, and alink secured to the eyes of the curved portion, while the lower clampingmember consists of a centrally-arranged curved portion,

two oppositely-arranged straight portions and two oppositely-arrangedslightly-curved portions, the curve of the centrally-arranged curvedportion being greater in depth than the curve of the oppositely-arrangedportions.

4. A device of this character, consisting of an upper and a lowerclamping-section, the upper member being provided with acontrally-curved portion and two oppositely-extending straight arms, aneye secured to the upper face of each one of the straight arms and thecurved portion, a pair of chains secured to the eyes of the straightportions, a link secured to the eye of the curved portion, and bolts forsecuring the clamps together.

5. A device of this character, consisting of an upper and a lowerclamping member, the lower clamp being made of a single piece of metaland having two oppositely-arranged straight portions, twooppositelyarranged slightly-curved portions, a centrally-arranged curvedportion ofgreater depth than the curve of the oppositely-arrangedportions, and bolts for securing both of the clamps adjustably together.

6. A device of this character, consisting of an upper and a lowerclamping member, the upper member being provided with a contrally-curvedportion and two oppositely-extending straight arms, an eye secured tothe upper face of each one of the straight arms and the curved portion,a pair of chains secured to the eyes of the straight portions, and alink secured to the eyes of the curved portion, while the lower clampingmember is made of a single piece of metal and consists of twooppositely-arranged straight portions, two oppositely-arrangedslightly-curved portions, and a centrally-arranged curved portion ofgreater depth than the curve of the oppositely-arranged portions, andbolts for securing both of the clamps adjustably together.

In testimony whereof we aflix our signatures in presence of twowitnesses.

THOMAS OSGOOD OTTO. JOHN ANDREW RUSSELL. Witnesses:

ZELMA CURRY, A. H. MCINNIS.

